实验流体力学2025，Vol.39Issue(5)：108-120,13.DOI:10.11729/syltlx20230088
等离子体合成射流抑制桨尖涡强度实验研究
Experimental study on blade tip vortex strength suppression using plasma synthetic jets
摘要
Abstract
To suppress the noise from the blade-tip vortex interactions(BVI)of the helicopter rotor,plasma synthetic jets(PSJs)were used as an active flow control method to weaken the intensity of the blade tip vortex.Firstly,the jet characteristics of the PSJ actuator at different loading voltage parameters(amplitude,frequency,duty cycle)were investigated.Then,the scheme of plasma synthetic jets to control the blade tip vortex was designed through simulation.The effects of blade tip vortex weakening in situations with various numbers and positions of PSJ and different sizes of jet holes were examined.According to the optimal flow control scheme from simulation design,the vertical jets were arranged near the leading edge of the end surface of the blade tip model.Then the test was carried out in the low-speed wind tunnel.Besides,the suppression effects of the plasma synthetic jet and continuous jet on the vortex strength of the blade tip were compared.Eventually,the mechanism of the suppression of the blade tip vortex was analyzed.The results show that the PSJ can effectively inhibit the development of the hovering blade tip vortex,and it is more effective than the continuous jet.Only a few jets need to be arranged on the leading edge near the lower edge part of the blade tip surface to obtain better results.关键词
等离子体合成射流/主动流动控制/桨尖涡/风洞实验/流动控制方案仿真设计Key words
plasma synthetic jet/active flow control/blade tip vortex/wind tunnel test/simulation design of flow control scheme分类
力学引用本文复制引用
张涛,陈晨,曹亚雄,曾伟,孟镱炜,刘汝兵,林麒..等离子体合成射流抑制桨尖涡强度实验研究[J].实验流体力学,2025,39(5):108-120,13.基金项目
国家自然科学基金项目(51707169) （51707169）
航空科学基金重点项目(201957002003) （201957002003）
中央高校基本科研业务费专项资金项目(20720210050) （20720210050）
中国空气动力研究与发展中心旋翼空气动力学重点实验室研究开放课题资助项目(RAL202103-1) （RAL202103-1）
